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Hurricane Elsa

By Scott Bachmeier •

GOES-16 “Red” Visible (0.64 µm) and “Clean” Infrared Window (10.35 µm) images [click to play animation | MP4]

GOES-16 “Red” Visible (0.64 µm) and “Clean” Infrared Window (10.35 µm) images [click to play animation | MP4]

Elsa was upgraded to a Category 1 hurricane at 1230 UTC on 02 July 2021 — and 1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) and “Clean” Infrared Window (10.35 µm) images (above) showed the tropical cyclone during and after the time period that it began to spread hurricane-force winds across the islands of Barbados and St. Lucia. Pulsing overshooting tops exhibited infrared brightness temperatures in the -80 to -87ºC range (shades of purple).

GOES-16 Infrared images with an overlay of deep-layer wind shear from the CIMSS Tropical Cyclones site (below) indicated that Elsa was moving through an environment of low shear.

GOES-16 Infrared images, with an overlay of deep-layer wind shear at 20 UTC [click to enlarge]

GOES-16 Infrared images, with an overlay of deep-layer wind shear at 20 UTC [click to enlarge]

Categories: GOES-16, Satellite winds, Tropical cyclones